Your Stove Sizing Results

BTU Required (Min)—

BTU Required (Max)—

Recommended Stove Size—

Firebox Size—

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Wood Stove BTU Guide

BTU Range	Best For	Firebox
Under 30,000	Small cabins, single rooms	0.5–1.0 cu ft
30,000–49,000	800–1,200 sq ft homes	1.0–1.5 cu ft
50,000–69,000	1,200–2,000 sq ft homes	1.5–2.0 cu ft
70,000–89,000	2,000–2,800 sq ft homes	2.0–2.5 cu ft
90,000+	Large homes, very cold climates, high ceilings	2.5+ cu ft

Never oversize a stove for a small space — you can't run it efficiently at low burn rates, leading to creosote buildup.
EPA-certified stoves are 70%+ efficient vs 50% for older non-certified models — same BTU, 30% less wood.
Lots of windows or old construction? Size up one category.
Two-story home? Heat rises — one stove on the main floor can heat both floors in an open layout.